I was "socialized" to the evils of cough and cold medicines as a resident in the late 60s when we saw several infants with PAT secondary to those meds. As a result, throughout my practice life I resisted prescribing/recommending these. I was positively gleeful when the FDA finally got on top of this!
It is very important to be positive ("here's what to do for your child", not "we can't do anything"). As any parent knows, it's a helpless feeling when your infant/child is miserable with a URI.